Question

Please solve questions..... I need them urgently ​

Answer 1

Answer:

(2x-5)+(x-10)=90

2x-5+x-10=90

2x+x-5-10=90

3x-15=90

3x=90+15

3x=105

x=105/3

x=35

angleAOC=2x-5

=2×35-5=65

angleBOC=x-10

=35-10=25

2)

angleAOB=2x

angleBOC=3X

AOB+BOC=AOC

2X+3X=75

5X=75

X=75/5

X=15

AOB=2×15=30

BOC=3×15=45

HENCE PROVED